sdk/include/reactos/compat_undoc.h

   1 #ifndef COMPAT_UNDOC_H
   2 #define COMPAT_UNDOC_H
   3
   4
   5 typedef struct _ReactOS_ShimData
   6 {
   7     DWORD dwReserved1[130];
   8     DWORD dwSize;
   9     DWORD dwMagic;
  10     DWORD dwReserved2[242];
  11     DWORD dwRosProcessCompatVersion;
  12 } ReactOS_ShimData;
  13
  14
  15 #define REACTOS_SHIMDATA_MAGIC  0xAC0DEDAB
  16
  17 #ifndef WINVER_VISTA
  18 #define WINVER_VISTA    0x0600
  19 #define WINVER_WIN7     0x0601
  20 #define WINVER_WIN8     0x0602
  21 #define WINVER_WIN81    0x0603
  22 #define WINVER_WIN10    0x0a00
  23 #endif
  24
  25 static
  26 inline
  27 DWORD RosGetProcessCompatVersion(VOID)
  28 {
  29     static DWORD g_CompatVersion = 0xffffffff;
  30     if (g_CompatVersion == 0xffffffff)
  31     {
  32         ReactOS_ShimData* pShimData = (ReactOS_ShimData*)NtCurrentPeb()->pShimData;
  33         if (pShimData && pShimData->dwMagic == REACTOS_SHIMDATA_MAGIC &&
  34             pShimData->dwSize == sizeof(ReactOS_ShimData))
  35         {
  36             g_CompatVersion = pShimData->dwRosProcessCompatVersion;
  37         }
  38     }
  39     return g_CompatVersion != 0xffffffff ? g_CompatVersion : 0;
  40 }
  41
  42
  43 #endif // COMPAT_UNDOC_H